L.B. Foster Company (FSTR)'s 30-day implied volatility (IV30) was 54.8% at the close on October 23, 2026, down from 55.4% the day before, against a 52-week range of 27.2% to 60.2%. Its 20-day historical volatility was 40.5%.

Key numbers

30-day implied volatility (IV30): 54.8%
IV30 52-week range: 27.2% to 60.2% (median 43.4%)
Historical volatility: 20-day 40.5%, 1-year 51.3%
Implied move by the nearest expiration: ±3.5%

Data as of October 23, 2026.

FSTR Implied Volatility (IV) vs Historical Volatility (HV)

Name: FSTR Implied Volatility
Creator: Market Chameleon